The cabin air filter is located behind the glove box on the passenger side of the 2020 Ford F-250.
For most trucks in this generation, you access the filter by lowering the glove box and removing a small housing cover, then replacing the filter and reassembling everything. This is a routine maintenance task that can improve HVAC performance and air quality inside the cabin.
Where to look and how to access it
Use the following steps to locate and expose the cabin air filter housing in a 2020 F-250.
- Park on a level surface and turn off the engine.
- Open the glove box and clear its contents.
- Gently squeeze the sides of the glove box to release the stop arms and allow the box to drop down.
- Look on the passenger side behind the glove box for a rectangular filter housing with a small cover or latch.
- Release the housing cover or latch to access the filter inside.
- Carefully pull out the old filter and note its orientation for installing the new one.
When you finish this step, you should see the rectangular filter housing and the old cabin air filter removed, ready for replacement.
Replacing the cabin air filter: step-by-step
Proceed with installing a fresh cabin air filter and resealing the housing.
- Insert the new filter into the housing, aligning it with the slot and ensuring the airflow arrows point in the direction of the HVAC system’s airflow through the cabin.
- Close and latch the filter housing securely.
- Lift the glove box back into its original position until the dampers click, then gently close the glove box.
- Run the HVAC system on fresh air for a few minutes to verify proper operation and airflow.
After completing the installation, the filter should be properly seated, the glove box reassembled, and the airflow should feel clean and unobstructed.
Tips for maintenance and avoidance of common issues
Regular maintenance can extend the life of the cabin air filter and keep the interior air quality better. Consider these tips:
- Replace the cabin air filter approximately every 12,000–15,000 miles, or sooner if you drive in dusty or high-pollen environments.
- Inspect for moisture or mold in the housing if you notice musty odors or reduced airflow.
- Keep the external intake area (often near the lower edge of the windshield on the passenger side) clear of debris to reduce clogging.
If you’re unsure about the process or your truck has a unique configuration, consult the owner's manual or a Ford service professional for guidance.
Summary
For a 2020 Ford F-250, the cabin air filter sits behind the glove box on the passenger side. Access is gained by lowering the glove box, removing the filter housing cover, and replacing the filter with the arrows indicating airflow toward the HVAC system. Reassemble, test the system, and consider routine replacements to maintain interior air quality and HVAC performance.